diff --git a/.drone.yml b/.drone.yml
index dbaddefe..41390c8d 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -26,8 +26,7 @@ pipeline:
       - go get -u github.com/go-xorm/sqlfiddle
       - go get -u github.com/go-sql-driver/mysql
       - go get -u github.com/mattn/go-sqlite3
-      #- golint ./...
-      - go test -v -race -coverprofile=coverage.txt -covermode=atomic
+      - go test -v -race -coverprofile=coverage.txt -covermode=atomic -dbConn="root:@tcp(mysql:3306)/core_test?charset=utf8mb4"
     when:
       event: [ push, tag, pull_request ]
 
diff --git a/db_test.go b/db_test.go
index ff14a487..348bbb07 100644
--- a/db_test.go
+++ b/db_test.go
@@ -17,6 +17,7 @@ import (
 
 var (
 	dbtype         = flag.String("dbtype", "mysql", "database type")
+	dbConn         = flag.String("dbConn", "root:@/core_test?charset=utf8", "database connect string")
 	createTableSql string
 )
 
@@ -50,7 +51,7 @@ func testOpen() (*DB, error) {
 		os.Remove("./test.db")
 		return Open("sqlite3", "./test.db")
 	case "mysql":
-		return Open("mysql", "root:@/core_test?charset=utf8")
+		return Open("mysql", *dbConn)
 	default:
 		panic("no db type")
 	}